temp gauge falls up & donw
Thread Starter
Newbie
Joined: May 2017
Posts: 1
Likes: 0
Model: Cherokee
temp gauge falls up & donw
temp gauge falls back down to 100 degrees , then back up to the 210 - jeep runs fine , heater works fine, not overheating. It was low on coolant, put more in & it still fell back to 100 , then back up to 210..
CF Veteran
Joined: Jun 2016
Posts: 2,929
Likes: 5
From: York PA
Year: 2001
Model: Cherokee
Engine: 4.0 Litre I6
sounds like your coolant temp sensor could be faulty. Normally if you have air in the cooling system, the temperature gauge will spike high the quickly return to normal. Your's is doing the opposite which is weird. I think the MOPAR sensors are around 50 bucks.
CF Veteran
Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0